(n.) The act of reflexing; the state of being retroflexed. Cf. Retroversion.

backset backsliding backward motion backward step ectropion eversion introversion intussusception invagination inversion lapse pronation reaction recession recidivation recidivism reentry refluence reflux regress regression relapse resupination retroaction retrocession retrogradation retrogression retroversion retrusion return reversal reversing reversion revulsion rollback setback sternway supination throwback topsy-turviness topsy-turvydom transposal transposition turning back turning backwards turning inside out turning inward turning over